Why is my blower motor not working properly?
This is a classic blower motor resistor problem which is common on older cars and trucks that use manual fan speed switch controls. This problem will also occur on climate control systems when the speed controller has burned out omitting full power to the blower motor. This can also occur with the ignition key off.
Where is the regulator on a Mercedes fan blower?
The Mercedes Benz fan blower motor regulator is a series of resisters in a printed circuit board about 2-inches square located right next to the blower motor.
What kind of motor does a blower fan use?
A blower motor is a basic 12 volt (DC) medium size electric motor that pulls a respectable amount of amperage (about 15 amps) which in time can burn out and stop working. As the blower motor ages the amperage that it takes to run the motor increases that overloads the electrical system which can cause additional problems.
Where is the blower motor under the hood?
If you cannot find the blower motor under the hood it will be located under the dash on the passenger side. You may need to remove the mounting screws of the lower panel to gain access to the motor for removal. This heater motor location is under the dash. Let’s start the removal which is the same for under hood or dash applications.
Why does my 1997 Jimmy blower not work?
I have a similar problem with my ’97 Jimmy, but it only occurs when I start up. Usually everything works fine. But intermittently the ABS light remains on. While it’s on the blower and power windows won’t work. This lasts from a few seconds to over a minute. As soon as the ABS light goes off, the blower and power windows work.
What causes a fuse to blow on a blower motor?
If the blower motor relay develops any sort of problem that hinders its ability to properly limit and distribute power, it may cause the blower motor fuse to blow. Any sort of electrical spikes or excessive current from a bad relay will blow the fuse and cut power in order to protect the system.
What causes a bad or failing blower motor relay?
Blown fuses. One of the first symptoms of a bad or failing AC blower motor relay is a blown AC blower motor relay circuit fuse. If the blower motor relay develops any sort of problem that hinders its ability to properly limit and distribute power, it may cause the blower motor fuse to blow. Any sort of electrical spikes or excessive current…
What causes blower motor to quit working on Blazer?
On my 97 Blazer, the blower motor will suddenly quit working while the anti-lock brake light will simultaniously light and the cruise will switch off. A half hour later, all three will switch back on.
What are the symptoms of a failed blower motor resistor?
Blower motor resistor problems. Problems with a blower motor resistor are common in many cars. The most common symptom of a failed blower motor resistor is when the heater fan only runs at high speed and doesn’t work at low speeds.
Why is the Nissan CVT the worst transmission?
Why the Nissan CVT Is Quite Possibly the Worst Transmission Ever Built But Nissan’s CVTs are also known for failing early on, which is why they’re the subject of many lawsuits. The transmissions are notorious for shuddering, making strange noises, overheating—and forcing the vehicle into a “limp” mode. Nissan vs. Toyota: Which is Better?
What makes a car blower fan turn slower?
When the motor is switched onto the lower speeds the electrical power is routed through a series of resistors or a solid state assembly that drops the voltage down to 6 volts, 8 volts and then 10 volts (low, medium low, medium) which in turn makes the blower motor turn slower.
What happens if you lose the blower motor relay?
The blower motor is the component responsible for pushing air through the vents of your vehicle’s heating and air conditioning systems. Without it, the AC system will not be able to circulate any heated or cooled air. The blower motor relay controls the current used to power the blower motor,…
Why does my HVAC blower need to be replaced?
The blower motor is the part of your HVAC system that uses the most energy, so it may very well be the culprit if you see a significant rise in your utility bills. An aging, problematic, or dirty motor has to work harder to properly circulate conditioned air throughout your home, which leads to higher energy consumption.
Blower motor resistor problems. Problems with a blower motor resistor are common in many cars. The most common symptom of a failed blower motor resistor is when the heater fan only runs at high speed and doesn’t work at low speeds.
The blower motor is the component responsible for pushing air through the vents of your vehicle’s heating and air conditioning systems. Without it, the AC system will not be able to circulate any heated or cooled air. The blower motor relay controls the current used to power the blower motor,…
What does it mean if your blower motor is not working?
Average rating from 849 customers who received a AC is not working Inspection. The blower motor resistor is an electrical component that is a part of the vehicle’s heating and air conditioning system. It is responsible for controlling the blower motor’s fan speed.
The blower motor is the part of your HVAC system that uses the most energy, so it may very well be the culprit if you see a significant rise in your utility bills. An aging, problematic, or dirty motor has to work harder to properly circulate conditioned air throughout your home, which leads to higher energy consumption.
As for the blower problem, if you find no fuses blown out and your system uses a variable speed control rather than several fixed speeds then the speed control module may possibly be damaged. It is a solid state unit the regulates the power to the blower motor. To see if the motor has a problem you could apply power directly to the motor. MarzK
When does the blower motor come on on a F53?
As far as the blower motor it should come on anytime the key is on and the fan speed knob it on regaurdless of it being on air or heat. Looking at the schematic for that year f53 the blower motor power feed is a brown wire with orange stripe.
How can I tell if my heater blower is working?
With the engine running, when you turn the control knob to A/C, you can hear a click from the a/c compressor clutch comming on & a slite change in the engine sound so I would think that part on the control panel is working.